Hi Mark, Both these islands meet all your needs. On Zante, Laganas is the resort to go for. While the teens party, you can go to Athens or Kefalonia. Have a look at JustZante.co.uk

Rhodes, I can wholeheartedly recommend Orion Studios in Faliraki through Kosmar. This complex is located on Bar Street on the outskirts of Town and so you are well away from the party zone but not so far for your teens to stagger home !! It has its own Restaurant which was the best in resort when we stayed there. On presentation of your room key, you got a free Carafe of wine with your meal. From Rhodes Town you can go across to Marmaris, Turkey. Rhodes Old Town is a must see area, learn about the Knights of St. John. Hope this is of some help to you.

Les

Zante is good for and, yes, Laganas is great for teenagers. For a better combination to suit both parties I'd recommend Tsilivi. Plenty of Music bars and lively in summer, but some nice restaurants and goos shopping also. Great beach aswell.

Rhodes - Lindos is a good mix for Adults and teenagers alike. Faliraki has a superb beach but is mainly set out for the younger crowd and has been quiet over the last few years. Rhodes town is beautiful and has pubs clubs and awesome shopping.

My preference is Zante though.

i dont really know rhodes, but i know zakynthos quite well. as a whole i would say that zakynthos is a very friendly and beautiful island. but it has been somewhat overun by tourism so you have to know where to go if you want to stay in a nice and quiet place and have any sort of experience of greece.

do not listen to anyone who says laganas is the place to go, especially if you want somewhere quiet. it is a hideous, huge, loud resort that is full of pissed teenagers and it has absolutely nothing to do with greece at all. it is cheap, but that is the onlt thing it has got going for it (unless you are looking for a party holiday where the only important things are getting pissed and having sex!!)

the nicer places to stay on zakynthos are alikanas - but make sure you are staying down near the beach. the area around the crossroads on the road to alikes is wrongly labelled as 'alikanas' but is a bit oif a soulless area really. also nice is the tiny resort of Agios Nikolaos (the one near Argassi on the eastern peninsula NOT the one in the north which is horrid. Porto koukla, near laganas is also ok.

there are also nice pockets of quiet accommodation along the northern coast of zakynthos in the region between tsilivi and alikanas with quiet, pretty little beaches. you might need a car if you are staying there though.

friends of zakynthos have a very good website with lots of info about the island so you can see pics of the resorts and read the reviews there.
just type friends of zakynthos into google.